| /* |
| * Copyright 2019-2020 Jan Kundrát, CESNET, <jan.kundrat@cesnet.cz> and Open Networking Foundation |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package org.onosproject.drivers.czechlight; |
| |
| import org.apache.commons.configuration.HierarchicalConfiguration; |
| import org.onosproject.net.OchSignal; |
| |
| import java.util.Map; |
| import java.util.stream.Collectors; |
| |
| /** Media Channel definition specifies a frequency range, i.e., a channel in a flexgrid DWDM system as retrieved from |
| * the ROADM device. We cannot use something like an OchSignal because this represents raw data on the device. |
| */ |
| class MediaChannelDefinition { |
| public int lowMHz; |
| public int highMHz; |
| |
| public MediaChannelDefinition(final int lowMHz, final int highMHz) { |
| this.lowMHz = lowMHz; |
| this.highMHz = highMHz; |
| } |
| |
| public String toString() { |
| return "Channel{" + String.valueOf(lowMHz / 1_000_000.0) + " - " + String.valueOf(highMHz / 1_000_000.0) + "}"; |
| } |
| |
| public static Map<String, MediaChannelDefinition> parseChannelDefinitions(final HierarchicalConfiguration xml) { |
| return xml.configurationsAt("data.channel-plan.channel").stream() |
| .collect(Collectors.toMap(x -> x.getString("name"), |
| x -> new MediaChannelDefinition(x.getInt("lower-frequency"), |
| x.getInt("upper-frequency")))); |
| } |
| |
| public static boolean mcMatches(final Map.Entry<String, MediaChannelDefinition> entry, final OchSignal och) { |
| return entry.getValue().lowMHz == och.centralFrequency().asMHz() - och.slotWidth().asMHz() / 2 |
| && entry.getValue().highMHz == och.centralFrequency().asMHz() + och.slotWidth().asMHz() / 2; |
| } |
| |
| }; |
| |